Sökning: "host range"

Visar resultat 21 - 25 av 218 avhandlingar innehållade orden host range.

  1. 21. Odour-mediated host preference in mosquitoes: the role of the maxillary palps in host recognition

    Författare :Shahid Majeed; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The mechanisms underlying host preference in mosquitoes are ultimately a result of optimal foraging on currently available hosts and historical patterns of host availability. The proximate mechanisms are regulated by available host cues and the nature of the mosquitoes’ responses to these cues. LÄS MER

  3. 22. Synthesis and Energy Transfer Studies of a Donor-Host-Acceptor Triad

    Författare :Jerker Mårtensson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; orientation factor; self-assembly; porphyrin; cations; F #246; rster; dimer; donor-host-acceptor triad; energy transfer; degenerate transition; diaza-crown ether;

    Sammanfattning : This dissertation describes the synthesis of a donor-host-acceptor triad, D-H-A, and its self-assembly into a well-ordered dimer. The energy transfer (EnT) properties of D-H-A as it is, in the presence of a variety of guest molecules and in the dimeric form are presented. LÄS MER

  4. 23. Host-pathogen interactions in root infecting oomycete species

    Författare :Sara Hosseini; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The oomycetes include some of the most devastating pathogens on both cultivated crops and wild plants. In the genus Phytophthora some closely related species have a broad host range, while others are very host specific. LÄS MER

  5. 24. Host-pathogen interactions in invasive Staphylococcus aureus infections

    Författare :Srikanth Mairpady Shambat; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Staphylococcus aureus is a versatile human pathogen causing a wide range of diseases from uncomplicated skin and soft tissue infections to life-threatening invasive diseases like endocarditis, bacteremia, necrotizing pneumonia, and fasciitis. The pathogen has become increasingly resistant to -lactam antibiotics, and of special concern is the rise in community- acquired (CA)-MRSA strains, as specific CA-MRSA clones have been associated with highly aggressive infections. LÄS MER

  7. 25. The environment of active galactic nuclei : excess counts and the nature of their host clusters

    Författare :Margrethe Wold; Christopher D. Impey; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomy; astronomi;

    Sammanfattning : This thesis presents observations of the galaxy environment of active galactic nuclei on galaxy cluster scales. In the first part, we quantify the galaxy environment of a sample of 40 quasars, consisting of equal fractions of radio-loud and radio-quiet sources. The sample covers a narrow range in redshift, 0.5 < z < 0. LÄS MER